diff --git a/src/java/davmail/exchange/ExchangeSession.java b/src/java/davmail/exchange/ExchangeSession.java
index c57a6262..8a8b6569 100644
--- a/src/java/davmail/exchange/ExchangeSession.java
+++ b/src/java/davmail/exchange/ExchangeSession.java
@@ -2247,7 +2247,9 @@ public abstract class ExchangeSession {
      */
     public List<Event> getEventMessages(String folderPath) throws IOException {
         return searchEvents(folderPath, ITEM_PROPERTIES,
-                and(isEqualTo("outlookmessageclass", "IPM.Schedule.Meeting.Request")));
+                and(or(isEqualTo("outlookmessageclass", "IPM.Schedule.Meeting.Request"),
+                        isEqualTo("outlookmessageclass", "IPM.Schedule.Meeting.Canceled")),
+                        or(isNull("processed"), isFalse("processed"))));
     }
 
     /**
diff --git a/src/java/davmail/exchange/dav/DavExchangeSession.java b/src/java/davmail/exchange/dav/DavExchangeSession.java
index ff16fbf9..805032b5 100644
--- a/src/java/davmail/exchange/dav/DavExchangeSession.java
+++ b/src/java/davmail/exchange/dav/DavExchangeSession.java
@@ -1869,14 +1869,12 @@ public class DavExchangeSession extends ExchangeSession {
     @Override
     public void processItem(String folderPath, String itemName) throws IOException {
         String eventPath = URIUtil.encodePath(getFolderPath(folderPath) + '/' + convertItemNameToEML(itemName));
-        // mark read
+        // do not delete calendar messages, mark read and processed
         ArrayList<DavConstants> list = new ArrayList<DavConstants>();
-        //list.add(Field.createDavProperty("processed", "true"));
+        list.add(Field.createDavProperty("processed", "true"));
         list.add(Field.createDavProperty("read", "1"));
         PropPatchMethod patchMethod = new PropPatchMethod(eventPath, list);
         DavGatewayHttpClientFacade.executeMethod(httpClient, patchMethod);
-        // move to trash
-        moveToTrash(eventPath);
     }
 
     @Override
@@ -2297,13 +2295,9 @@ public class DavExchangeSession extends ExchangeSession {
 
     @Override
     protected void moveToTrash(ExchangeSession.Message message) throws IOException {
-        moveToTrash(message.permanentUrl);
-    }
-
-    protected void moveToTrash(String messageUrl) throws IOException {
         String destination = URIUtil.encodePath(deleteditemsUrl) + '/' + UUID.randomUUID().toString();
-        LOGGER.debug("Deleting : " + messageUrl + " to " + destination);
-        MoveMethod method = new MoveMethod(messageUrl, destination, false);
+        LOGGER.debug("Deleting : " + message.permanentUrl + " to " + destination);
+        MoveMethod method = new MoveMethod(message.permanentUrl, destination, false);
         method.addRequestHeader("Allow-rename", "t");
 
         int status = DavGatewayHttpClientFacade.executeHttpMethod(httpClient, method);